Elektroforese

Elektroforese (av gr. Ηλεκτροφόρηση som betyr å bære elektroner) er bevegelsen av dispergerte partikler i forhold til en væske under påvirkning av et jevnt elektrisk felt.[1][2][3] Elektroforese av positivt ladde partikler (kationer) er noen ganger kaldt katoforese, og elektroforese av negative ladde partikler (anioner) er noen ganger kaldt anaforese.

Det elektrokinetiske fenomenet elektroforese var observert første gang i 1807 av den russiske professoren Peter Ivanovich Strakhov og Ferdinand Frederic Reuss ved Statsuniversitetet i Moskva[4], som bemerket at leirepartikler oppløst i vann vil vandre (migrere) i et konstant elektrisk felt. Det er forårsaket av tilstedeværelsen av en ladningforskjell mellom partikkeloverflaten og væsken. Det er grunnlaget for analytiske teknikker som brukes i kjemi for å separere molekyler etter størrelse, ladning eller bindingsaffinitet.

Elektroforese brukes i laboratorier for å skille makromolekyler basert på størrelse. Det brukes en negativ ladning for å la proteiner vandre mot en positiv ladning. Elektroforese brukes til både DNA- og RNA-analyse.

Det er flere typer elektroforese[5]

Se også

Referanser

  1. ^ Lyklema, J. (2005). Fundamentals of interface and colloid science. Elsevier Academic Press. ISBN 0124605303. OCLC 956944088. 
  2. ^ Hunter, Robert J. (1995). Foundations of colloid science. Clarendon Press. ISBN 0198551878. OCLC 833076408. 
  3. ^ Masliyah, J. H. and Bhattacharjee, S. (2005). Electrokinetic Phenomena. In Electrokinetic and Colloid Transport Phenomena (eds J. H. Masliyah and S. Bhattacharjee). doi:10.1002/0471799742.ch7
  4. ^ Reussh, Friedric Ferdinand (1809). Notice sur un nouvel effet de l'électricité galvanique. OCLC 253566018. 
  5. ^ Jacobsen, Einar. (2009, 14. februar). Elektroforese. I Store norske leksikon. Besøkt 20. august 2016.


Read other articles:

Film dan Peristiwa

Film dan PeristiwaSelebaranSutradaraUsman EffendyProduserG. DwipayanaDitulis olehUsman EffendyPemeranDiditUsman EffendyBenny ChandraAnton IndracayaHardo SukoyoChristi MaharsaPenata musikSudharmonoPenyuntingFX SubrotoSupandiDistributorPPFNTanggal rilis1985Durasi81 menitNegaraIndonesia Film dan Peristiwa adalah film Indonesia tahun 1985 dengan disutradarai oleh Usman Effendy. Waktu diputar TVRI, judulnya berganti menjadi Detik-detik Proklamasi Sinopsis Proklamasi 17 Agustus 1945 tidak sem...

 

Tourcoing

Cet article possède un paronyme, voir Courtoin. Tourcoing De haut en bas, et de gauche à droite : l'Hôtel de Ville, la Gare, le Parc de l'Union, La tossée friche, le beffroi de l'ancienne chambre de commerce et de l'industrie et l'église Saint-Christophe. Blason Administration Pays France Région Hauts-de-France Département Nord Arrondissement Lille Intercommunalité Métropole européenne de Lille Maire Mandat Doriane Bécue (DVD)[1] 2020-2026 Code postal 59200 Code commune 59599...

 

Holytown railway station

Railway station in North Lanarkshire, Scotland HolytownScottish Gaelic: Baile a' Chuilinn[1]General informationLocationNew Stevenston, North LanarkshireScotlandCoordinates55°48′45″N 3°58′25″W / 55.8126°N 3.9736°W / 55.8126; -3.9736Grid referenceNS764594Managed byScotRailPlatforms2Other informationStation codeHLYKey dates1 June 1880[2]Opened as Carfin1 January 1882Renamed Carfin Junction1 June 1882[3]Renamed Holytown Junction1 October...

Turkmenistan at the 2008 Summer Olympics

Sporting event delegationTurkmenistan at the2008 Summer OlympicsIOC codeTKMNOCNational Olympic Committee of Turkmenistanin BeijingCompetitors10 in 6 sportsFlag bearer Guwanç NurmuhammedowMedals Gold 0 Silver 0 Bronze 0 Total 0 Summer Olympics appearances (overview)19962000200420082012201620202024Other related appearances Russian Empire (1900–1912) Soviet Union (1952–1988) Unified Team (1992) Turkmenistan competed in the 2008 Summer Olympics held in Beijing, People's R...

 

B

  此條目介紹的是拉丁字母中的第2个字母。关于其他用法，请见「B (消歧义)」。   提示：此条目页的主题不是希腊字母Β、西里尔字母В、Б、Ъ、Ь或德语字母ẞ、ß。 BB b(见下)用法書寫系統拉丁字母英文字母ISO基本拉丁字母（英语：ISO basic Latin alphabet）类型全音素文字相关所属語言拉丁语读音方法 [b][p][ɓ](适应变体)Unicode编码U+0042, U+0062字母顺位2数值 2歷史發...

 

United States Cavalry

Formerly the cavalry branch of the U.S. Army (1775–1950) This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (September 2009) (Learn how and when to remove this message) United States CavalryCavalry branch plaqueActive1775–1950Country United States of AmericaBranch United States ArmyTypeCavalryRoleReconnaissance, security (e.g., flank screening, adva...

Lockheed YP-24

Lockheed-Detroit YP-24 adalah prototipe pesawat tempur sayap rendah (low wing) dua-kursi 1930. Versi serangan yang disebut A-9 juga diajukan. YP-24 adalah yang paling luar biasa untuk menjadi pesawat tempur pertama untuk menanggung nama Lockheed. Referensi Andrade, John M. U.S. Military Aircraft Designations and Serials since 1909. Earl Shilton, Leicester, UK: Midland Counties Publications, 1979. ISBN 0-904597-21-0. Bowers, Peter M. and Enzo Angellucci. The American Fighter. New York: Orion ...

 

Nirad C. Chaudhuri

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Nirad C. Chaudhuri – news · newspapers · books · scholar · JSTOR (November 2015) (Learn how and when to remove this message) Indian writer (1897 – 1999) Nirad C. ChaudhuriBorn(1897-11-23)23 November 1897Kishoreganj, Bengal Presidency, British India(present-da...

 

The Lovely Bones (película)

Este artículo o sección necesita referencias que aparezcan en una publicación acreditada. Busca fuentes: «The Lovely Bones (película)» – noticias · libros · académico · imágenesEste aviso fue puesto el 27 de noviembre de 2012. The Lovely BonesTítulo Desde mi cielo (Hispanoamérica)Ficha técnicaDirección Peter JacksonProducción Peter JacksonFran WalshCarolynne CunninghamAimée PeyronnetGuion Peter JacksonFran WalshPhilippa BoyensBasada en Desde mi cielo de ...

Flevoland

Provincie Flevoland Provinsi Flevoland Bendera Lambang Map: Provinsi Flevoland di Belanda Ibu kota Lelystad Kota besar Almere Komisaris Raja Leen Verbeek (PvdA) Agama (2015) Protestan 26% Katolik 12% Muslim 7% ireligius 55% Luas • Darat • Air  1,410 km² (ke-12)1,002 km² Populasi (2023) • Total • Kepadatan 445,000 (ke-11)315/km² (ke-8) Inclusion 1986 Lagu kebangsaan Waar wij steden doen verrijzen... ISO NL-FL Situs Web Resmi www.flevoland.nl ...

 

Dieci comandamenti

Disambiguazione – Tavole della Legge rimanda qui. Se stai cercando il corpo di leggi compilato nel 451-450 a.C. nel diritto romano, vedi Leggi delle XII tavole. Disambiguazione – Se stai cercando altri significati, vedi I dieci comandamenti. Questa voce o sezione sugli argomenti bibbia e religione non cita le fonti necessarie o quelle presenti sono insufficienti. Puoi migliorare questa voce aggiungendo citazioni da fonti attendibili secondo le linee guida sull'uso delle font...

 

UFC Fight Night: Cyborg vs. Länsberg

UFC mixed martial arts event in 2016 UFC Fight Night: Cyborg vs. LänsbergThe poster for UFC Fight Night: Cyborg vs. LänsbergInformationPromotionUltimate Fighting ChampionshipDateSeptember 24, 2016 (2016-09-24)VenueGinásio Nilson NelsonCityBrasília, BrazilAttendance8,410[1]Event chronology UFC Fight Night: Poirier vs. Johnson UFC Fight Night: Cyborg vs. Länsberg UFC Fight Night: Lineker vs. Dodson UFC Fight Night: Cyborg vs. Länsberg (also known as UFC Fight Night ...

Duffy Power

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Duffy Power – news · newspapers · books · scholar · JSTOR (February 2014) (Learn how and when to remove this message) Duffy PowerBackground informationBirth nameRaymond Leslie HowardBorn(1941-09-09)9 September 1941Fulham, London, EnglandDied19 February 2014(20...

 

Geovanny Nazareno

Ecuadorian footballer (born 1988) In this Spanish name, the first or paternal surname is Nazareno and the second or maternal family name is Simisterra. Geovanny Nazareno Personal informationFull name Geovanny Enrique Nazareno SimisterraDate of birth (1988-01-17) 17 January 1988 (age 36)Place of birth Nueva Loja, Sucumbíos, EcuadorHeight 1.77 m (5 ft 10 in)Position(s) Left WingbackTeam informationCurrent team Club 9 de OctubreYouth career2005–2006 Barcelona SCSen...

 

Costantino I

Disambiguazione – Se stai cercando altri significati, vedi Costantino I (disambigua). Disambiguazione – Costantino rimanda qui. Se stai cercando altri significati, vedi Costantino (disambigua). Disambiguazione – Costantino il Grande rimanda qui. Se stai cercando altri significati, vedi Costantino il Grande (disambigua). Costantino ICesare e poi Augusto dell'Impero romanoTesta dell'acrolito monumentale di Costantino (Musei Capitolini) Nome originaleFlavius Valerius ...

Mathilde Marchesi

Mathilde MarchesiMathilde MarchesiLahirMathilde Graumann(1821-03-24)24 Maret 1821Frankfurt, JermanMeninggal17 November 1913(1913-11-17) (umur 92)London, Britania RayaKebangsaanJermanPekerjaanmezzo-sopranoguru menyanyiSuami/istriSalvatore Marchesi ​(m. 1852)​Tanda tangan Mathilde Marchesi, dari publikasi tahun 1917. Mathilde Marchesi (née Graumann; 24 Maret 1821 – 17 November 1913) adalah seorang mezzo-soprano Jerman, seorang guru menyanyi, d...

 

Барода (князівство)

बडोदा संस्थान князівство Барода (Вадодара) 1721 – 1949 Прапор Герб Бароди: історичні кордони на картікнязівство Вадодар у 1909 році Столиця ВадодараСонгарх Релігії індуїзм Форма правління монархія магараджа Піладжі Рао Гайквад Історія  - Засновано 1721  - ...

 

Ascoli Calcio 1898 1977-1978

Voce principale: Ascoli Calcio 1898. Ascoli Calcio 1898Stagione 1977-1978I marchigiani vincitori del torneo cadetto. Sport calcio Squadra Ascoli Allenatore Antonio Renna Presidente Costantino Rozzi Serie B1º (promosso in Serie A) Coppa ItaliaPrimo turno Maggiori presenzeCampionato: Moro (38) Miglior marcatoreCampionato: Ambu (17) StadioCino e Lillo Del Duca 1976-1977 1978-1979 Si invita a seguire il modello di voce Questa voce raccoglie le informazioni riguardanti l'Ascoli Calcio 1...

倒閣

この記事には複数の問題があります。改善やノートページでの議論にご協力ください。 出典がまったく示されていないか不十分です。内容に関する文献や情報源が必要です。（2017年6月） 独自研究が含まれているおそれがあります。（2017年6月）出典検索?: 倒閣 – ニュース · 書籍 · スカラー · CiNii · J-STAGE · NDL · dlib.jp · ジャパ�...

 

كين إيشيغورو

هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (يوليو 2019) كين إيشيغورو (باليابانية: 石黒 賢)‏  معلومات شخصية الميلاد 31 يناير 1966 (58 سنة)  طوكيو  مواطنة اليابان  الطول 178 سنتيمتر[1]  الوزن 65 كيلوغرام[1]&...